Letâs face it: Most of us don't give much thought to our pee before we flush it out of sight. But the basic details of your urine -- color, smell, and how often you go -- can give you a hint about whatâs going on inside your body. Pee is your bodyâs liquid waste, mainly made of water, salt, and chemicals called urea and uric acid. Your kidneys make it when they filter toxins and other bad stuff from your blood.
Further refining may be performed using one of two processes. In cementation, the acidic solution of copper is deposited on to scrap iron in an oxidation-reduction reaction. After sufficient amounts of copper have been plated, the copper is further refined using the pyrometallurgical process.
Remove the cleaned penny from the liquid and let it sit for an hour. The residue that is on the copper surface promotes a reaction between the copper and the oxygen in the air. The resulting blue-green copper oxide is a tarnish that forms called patina. These are copper minerals that are observed in nature.Green patina forms when a shiny copper penny is removed from the salt/vinegar solution.e can take the solution that we have been cleaning the copper pennies and coat a nickel nail with copper metal. The reaction is: Check with the Table of Activity of Metals 1  : Reaction 3 is observed because nickel is higher up on the activity series of metal than copper.